CFR›Title 30›Chapter I›Part 75›Subpart L›Subject Group Fire Suppression Devices and Fire-Resistant Hydraulic Fluids on Underground Equipment›30 CFR 75.1107-12 Citation30 CFR 75.1107-12CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 § 75.1107-12 Inerting of mine atmosphere prohibited.No fire suppression device designed to control fire by total flooding shall be installed to protect unattended underground equipment except in enclosed dead-end entries or enclosed rooms.[37 FR 15303, July 29, 1972] Previous 75.1107-11 § 75.1107-11 Extinguishing agents; requirements on mining equipment employed in low coal. Next 75.1107-13 § 75.1107-13 Approval of other fire suppression devices.
§ 75.1107-12 Inerting of mine atmosphere prohibited.No fire suppression device designed to control fire by total flooding shall be installed to protect unattended underground equipment except in enclosed dead-end entries or enclosed rooms.[37 FR 15303, July 29, 1972]